Apply your best efforts to become the best ninja in the history. The villains are everywhere, so get ready to fight them all. Take your weapons – diverse and deadly – to cope with the enemies like a pro. Level up to deal with upcoming missions that will become harder. One day, you will meet the biggest boss and fight him courageously! Different types of weapons allow you to master the art of struggling and develop your own unique style. Get contracts from “customers” and move forward, killing more enemies!